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50 lines
1.7 KiB
Go
50 lines
1.7 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package ttrpc
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import (
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"context"
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"net"
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)
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// Handshaker defines the interface for connection handshakes performed on the
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// server or client when first connecting.
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type Handshaker interface {
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// Handshake should confirm or decorate a connection that may be incoming
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// to a server or outgoing from a client.
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//
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// If this returns without an error, the caller should use the connection
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// in place of the original connection.
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//
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// The second return value can contain credential specific data, such as
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// unix socket credentials or TLS information.
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//
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// While we currently only have implementations on the server-side, this
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// interface should be sufficient to implement similar handshakes on the
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// client-side.
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Handshake(ctx context.Context, conn net.Conn) (net.Conn, interface{}, error)
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}
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type handshakerFunc func(ctx context.Context, conn net.Conn) (net.Conn, interface{}, error)
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func (fn handshakerFunc) Handshake(ctx context.Context, conn net.Conn) (net.Conn, interface{}, error) {
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return fn(ctx, conn)
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}
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func noopHandshake(ctx context.Context, conn net.Conn) (net.Conn, interface{}, error) {
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return conn, nil, nil
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}
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